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Vol. 25 No. 8 (2013): Vol 25 Issue 8

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Speciation of Zinc Metal in Paddy Soils by Chemical Sequential Extraction and Synchrotron X-ray Spectroscopy

https://doi.org/10.14233/ajchem.2013.13947
Tzuhsing Ko
Department of Tourism Affairs, Tzu Hui Institute of Technology, Nanjhou Hsian, Pingtung County 926, Taiwan
Hsinta Hsueh
Sustainable Environment Research Center, National Cheng Kung University, 1 University Road, Tainan 701, Taiwan
Chiru Yang
Department of Environmental Engineering and Science, Chia-Nan University of Pharmacy and Science, Tainan 717, Taiwan

Corresponding Author(s) : Tzuhsing Ko

hsingko@gmail.com

Asian Journal of Chemistry, Vol. 25 No. 8 (2013): Vol 25 Issue 8

Abstract

A severely zinc-contaminated paddy soils were collected and analyzed by the chemical sequential extraction and synchrotron X-ray spectroscopy. Results show that Zn, Pb and Cu were the major heavy metals in paddy soils. The carbonates and Fe-Mn oxide fractions were the main form for Zn whereas a considerable residual fraction was detected for Pb. In addition to Zn-O, many bonding structures between zinc and other metals were also examined. The possible species of zinc would be Zn-Al(Si) with a bonding distance of 2.18 Å and a Zn-Fe structure with a bonding distance of 3.07 Å.

Keywords

Paddy soils Chemical sequential extraction Synchrotron X-ray spectroscopy
Ko, T., Hsueh, H., & Yang, C. (2013). Speciation of Zinc Metal in Paddy Soils by Chemical Sequential Extraction and Synchrotron X-ray Spectroscopy. Asian Journal of Chemistry, 25(8), 4298–4300. https://doi.org/10.14233/ajchem.2013.13947
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